22764513 has 8 divisors (see below), whose sum is σ = 32138208. Its totient is φ = 14283584.

The previous prime is 22764487. The next prime is 22764569. The reversal of 22764513 is 31546722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22764513 - 2⁵ = 22764481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22764113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223131 + ... + 223232.

It is an arithmetic number, because the mean of its divisors is an integer number (4017276).

Almost surely, 2^22764513 is an apocalyptic number.

It is an amenable number.

22764513 is a deficient number, since it is larger than the sum of its proper divisors (9373695).

22764513 is a wasteful number, since it uses less digits than its factorization.

22764513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446383.

The product of its digits is 10080, while the sum is 30.

The square root of 22764513 is about 4771.2171403113. The cubic root of 22764513 is about 283.4127960127.

The spelling of 22764513 in words is "twenty-two million, seven hundred sixty-four thousand, five hundred thirteen".